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 * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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 */

package compiler.lib.ir_framework.driver.irmatching.visitor;

import compiler.lib.ir_framework.driver.irmatching.MatchResult;

import java.util.Collection;
import java.util.List;
import java.util.function.Consumer;

/**
 * This class invokes {@link MatchResult#accept(MatchResultVisitor)} on all failed match results (i.e. children) inside
 * a {@link MatchResult} object to visit them.
 */
public class AcceptChildren implements Consumer<MatchResultVisitor> {
    private final Collection<? extends MatchResult> matchResults;

    public AcceptChildren(List<MatchResult> matchResults) {
        this.matchResults = matchResults;
    }

    @Override
    public void accept(MatchResultVisitor visitor) {
        for (MatchResult result : matchResults) {
            if (result.fail()) {
                result.accept(visitor);
            }
        }
    }
}
